Running would only activate its hunting instincts, you think to yourself, so you try to remain calm. Maybe the predators instincts will not kick in if you don't act like prey would.
The snake continues to close in on you, ten meters, five, its size is remarkable. While you can't really make out where its body ends due to the camouflage scales blending in with the environment, she must have been at least ten meters in lenth.
Its forked tounge slid out of its closed mouth and inside again. It seemingly licked at the air, picking up your scent.

You look into the dark, deep eyes, the pitch black slit pupils. There is something, serene about the rhythmic slithering, like a slow and enchanting dance. You couldn't look anywhere but into its eyes, coming closer and closer, until you could have touched the large predators head, which was as wide as your shoulders. It remained there, just before you, as the rest of the snakes body slowly started to encircle you. Face to face with the predator, the thick tongue almost touching you, you feel smooth scales getting hold of your legs, soon after your hips and your torso. Before you got hold of your senses again, you were wrapped up in black, brown, and green.

The smooth touch was now enforced by the flexing of muscles. You could feel, the snake wasn't close to using its full power, each and every fiber of its body seeming to be pure muscle. A first comfortable feeling turned into a tight squeeze, as the predators instincts began to arise. The flicking of the tounge became quicker, now hitting you, feeling like being hit with thick, wet rope. The scaly predator easily displaced you, your feet losing contact with the ground once more, breathing becoming harder. The anaconda looked into your eyes no more, but positioned its head above you, while your head was the only thing peeking out of the ball of coils.

With you not showing signs of resist, the hungry predator didn't bother to crush you to death. Unable to move your head, you feel thick, warm drops falling onto your hair, soon followed by something grabbing you all around your scalp. The snake had begun to engulf your head inside its maw, causing your vision to go black in a warm and slimy embrace. The little air you could breathe smelled odd, but that was the least of your problems. Coils made way for the predators maw to welcome your shoulders inside, eagerly working its way down, still holding you in place.

Your face is pushed through tight walls of flesh, as your body continues to become snake food. You feel the predators maw taking in your hips, starting to tilt its head so gravity would help it swallow. The Enclosure with its artificial tropical heat was nothing compared to this. Your knees and shins are covered in saliva as the snake was almost done with its meal. The massage like feeling of its maw working towards your feet ended, as they disappeared inside a closing maw. Pulsating swallowing sent you down all the way to its stomach, pressed into place by the finely textured walls. The anaconda, apparently very pleased by your taste, let you disappear completely, only a large bulge in its midsection being seen from the outside. You could feel the snake slither and move, looking for a nice place to rest and let its body work.